BMP vs JPEG — Differences, File Size & When to Use Each

BMP vs JPEG

Ein detaillierter Vergleich von BMP Image und JPEG Image — Dateigröße, Qualität, Kompatibilität und welches je nach Workflow zu wählen ist.

JPEG → BMP umwandeln

BMP

BMP Image

Raster & Vector Images

BMP is an uncompressed raster image format native to Windows. Files are large but preserve exact pixel data with no compression artifacts. Rarely used on the web due to file size.

Über BMP-Dateien

JPEG

JPEG Image

Raster & Vector Images

JPEG alternate extension. Functionally identical to JPG but uses the four-letter extension. Some older systems and cameras produce files with this extension.

Über JPEG-Dateien

Vorteilsvergleich

BMP Vorteile

Dead-simple format — trivially easy to read and write.
Lossless and uncompressed — perfect bit-exact pixel storage.
Universally supported in Windows applications since 1985.
Supports 1, 4, 8, 16, 24, and 32-bit color depths.

JPEG Vorteile

Universally supported — every camera, browser, OS, and editor reads JPEG.
Mature, deterministic, and fast to encode/decode.
Small file sizes for photographs — DCT compression shines on continuous-tone imagery.
Rich metadata ecosystem (EXIF for shooting data, XMP for editing, IPTC for captions).
Progressive variant enables perceived faster loading on slow networks.

Einschränkungen

BMP Einschränkungen

Enormous file sizes — no meaningful compression in typical use.
Not a web format — browsers support it but nobody serves BMPs over HTTP.
No metadata support (no EXIF, no ICC profile in practice).
Multiple header versions mean "a BMP" is ambiguous — parsers must handle several variants.

JPEG Einschränkungen

Lossy by design — every save further degrades quality ("generation loss").
No transparency channel. Logos and UI elements belong in PNG or WebP.
Terrible on flat colors, text, and sharp edges — blocking artifacts are visible.
Limited to 8-bit color — HDR and wide gamut need JPEG XL or AVIF.
Twice the size of WebP and 30-50% bigger than AVIF at comparable quality.

Technische Spezifikationen

Spezifikation	BMP	JPEG
MIME type	image/bmp	image/jpeg
Extensions	.bmp, .dib	—
Compression	None (typical); RLE 4/8 bit (rare)	Lossy DCT (baseline); lossless mode exists but rarely used
Color depths	1, 4, 8, 16, 24, 32 bits per pixel	—
Byte order	Little-endian	—
File extensions	—	.jpg, .jpeg, .jpe, .jfif
Standard	—	ITU-T T.81 / ISO/IEC 10918-1:1994
Color depth	—	8-bit per channel (24-bit RGB total)
Max dimensions	—	65 535 × 65 535 px

Typische Dateigrößen

BMP

Small icon (32×32) 4 KB
Screenshot (1920×1080) ~6 MB
4K image (3840×2160) ~25 MB
Scanned A4 at 300 dpi ~25 MB

JPEG

Thumbnail (400px) 20-60 KB
Web photo (1920px) 200-500 KB
Print-quality photo (3000px) 1-4 MB
DSLR JPEG (24 MP, quality 95) 6-12 MB

Bereit zum Umwandeln?

Wandle zwischen BMP und JPEG online um, kostenlos und ohne Installation. Verschlüsselter Upload, automatische Löschung in 60 Minuten.

JPEG zu BMP umwandeln

Häufig gestellte Fragen

BMP (Bitmap) is a raster image format developed by Microsoft for Windows. It stores images with no compression by default, resulting in large file sizes but pixel-perfect quality. It has been part of Windows since version 1.0.

BMP (Bitmap) is a raster image formato developed by Microsoft para Windows. It stores images com no compressão by default, resulting in large tamanho do arquivos mas pixel-perfect quality. It has been part of Windows since version 1.0.

BMP files open in Windows Paint, Photos, macOS Preview, GIMP, Photoshop, and virtually any image viewer. All Windows applications support BMP natively.

BMP arquivos abrir in Windows Paint, Photos, macOS Preview, GIMP, Photoshop, e virtually any image viewer. All Windows aplicativos support BMP natively.

PNG is better than BMP in almost every scenario since it provides lossless compression (smaller files), transparency support, and wider cross-platform use. BMP is mainly relevant for legacy Windows applications.

PNG is melhor que BMP in almost every scenario since it fornece sem perdas compressão (smaller files), transparência support, e wider cross-platform use. BMP is mainly relevant para legacy Windows aplicativos.